Improve cache filepaths

src/classes/cache/blog.php

@@ -8,6 +8,17 @@ namespace wishthis\Cache;
 
 class Blog extends Cache
 {
+    /**
+     * Private
+     */
+    protected function getFilepath(): string
+    {
+        return parent::getFilepath() . '.json';
+    }
+
+    /**
+     * Public
+     */
     public function __construct($url)
     {
         parent::__construct($url);

src/classes/cache/cache.php

@@ -33,7 +33,7 @@ class Cache
 
     protected function getFilepath(): string
     {
-        return $this->directory . '/' . $this->getIdentifier() . '.json';
+        return $this->directory . '/' . $this->getIdentifier();
     }
 
     protected function write(mixed $value): void

src/classes/cache/embed.php

@@ -12,6 +12,14 @@ namespace wishthis\Cache;
 
 class Embed extends Cache
 {
+    /**
+     * Private
+     */
+    protected function getFilepath(): string
+    {
+        return parent::getFilepath() . '.json';
+    }
+
     /**
      * Public
      */